The Papis announcement was the latest in a series driver announcements as teams ready themselves for the 51st annual Grand-Am Series event set for Daytona International Speedway, Jan. 26-27.

Here's a look at how some of the top teams are shaping up:

-- Enzo Potolicchio, runner-up in the 2012 Rolex 24, returns to Grand-Am with a new team, 8Star Motorsports. He will co-drive the team's new Corvette DP with former Peugeot factory drivers Stephane Sarrazin, Nic Minassian and Pedro Lamy.

-- Starworks Motorsport enjoyed a breakthrough season in 2012, winning the inaugural Rolex Series race at Indianapolis Motor Speedway and the North American Endurance Championship in addition to class victories in the 12 Hours of Sebring and 24 Hours of Le Mans. Alex Popow and Ryan Dalziel will be the lead drivers of the Starworks' No. 2 Ford/Riley, and will be joined at the Rolex 24 by four-time Indy-car race winner Sebastien Bourdais and endurance racing veteran Allan McNish.

-- Gainsco/Bob Stallings Racing won a pair of Daytona Prototype championships, the team continues to seek its first victory in the Rolex 24. Team regulars Alex Gurney and Jon Fogarty return to the No. 99 GAINSCO Auto Insurance Corvette DP in 2013, and will be joined at the Rolex 24 by Darren Law and Memo Gidley.

The first on-track activity for both the Grand-Am Rolex Series and Continental Tire Sports Car Challenge will be the Roar Before the Rolex 24 test at Daytona International Speedway, Jan. 4-6.